Tool for installing valve springs



Nov.25, 1941. .E.;A.'JQ'HN$N 2,263,875

TOOL FOR INSTALLING VALVE SPRINGS Filed July 15, 1940 Eli. efakrz'aaia INVENTOR."

A TTORNEYS.

Patented Nov. 25, 1941 ENE'E'EE STATEE harem" @FEICE 3 Claims.

This invention relates to a tool designed for use in installing valve springs in V-8 engines, and aims to provide a tool constructed to receive a valve spring in such a way that when the tool is inserted in the engine block, the spring which is held thereon, may be readily directed to its proper operating position within the engine block.

An important object of the invention is to provide a tool of this character which may be used in installing valve springs, eliminating the necessity of removing the valve guide, through which the valve operates, to position the valve spring.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein described, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawing:

Figure 1 is a vertical sectional view through an engine block, illustrating the tool as used in positioning the valve spring.

Figure 2 is a plan view of the tool.

Figure 3 is a side elevational view of the tool, a portion of the head of the tool being broken away illustrating the grooves in the upper surface thereof.

Figure 4 is a bottom view of the tool.

Referring to the drawing in detail, the tool comprises an elongated handle 5, and a head indicated generally by the reference character 6.

The head is shown as being slightly upwardly curved, so that when the tool is inserted in an engine block, the end of the tool on which the valve spring being installed, is positioned, will be in a direct line with the valve guide, as shown by Figure 1 of the drawing.

Disposed at the inner end of the head 6, are laterally extended lugs 1, the upper rear edges of the head, and forward edges of the lugs being recessed as at 8 to conform to the shape of the coils of the coiled spring which is being installed.

On the rear surface of the head 6, is an enlargement 9 that has its forward edge curved as at H), to fit the curvature of the convolutions of the coiled spring which is being installed.

The lugs I provide stops for one end of the coiled spring, as shown by Figure 1 of the drawing, to the end that when a coiled spring i being installed, and is placed over the valve guide as shown by Figure 1, pressure on the tool towards the valve guide. will tend to compress the coiled spring so that it may be readily moved to its proper position. As the tool is being used, and the coiled spring is moved inwardly, the curved portion H! of the enlargement 9, may be brought into contact with the coiled spring to further compress the spring and move the spring directly over the valve guide and valve.

When the spring has been properly positioned, it is obvious that the tool may be readily withdrawn from the opening, leaving the spring in its proper operative position within the engine block.

A groove indicated at I l is formed in the outer end of the head 6, the groove being curved to fit over the curved edge of a spring, to permit the tool to be used in forcing a spring to its seat, after the tool has been removed from the interior of the coiled spring.

From the foregoing it will be seen that due to the construction of the tool, a valve spring may be readily and easily positioned in the narrow and contracted portion of the engine block with little difficulty on the part of the user.

What is claimed is:

l. A tool for use in installing valve springs in V-8 motors, comprising a handle, a curved head at one end of the handle, lugs extending laterally from the head at opposite sides thereof, said lugs being disposed adjacent to the inner end of the head, said head and lugs having communicating recesses formed in the upper surface thereof, the recesses being curved to conform to the shape of a coiled spring positioned over the head of the tool, for installation.

2. A tool for use in installing valve springs in V-8 motors, comprising an elongated handle, an elongated curved head formed at one end of the handle, lugs extending laterally from the head at the inner end thereof and disposed on opposite sides of the head, said head and lugs having recesses curved to conform to the curvature of the spring positioned over the head, an enlargement formed on the opposite side of the head and said enlargement having its forward end curved to accommodate a coiled spring.

3. A tool for use in installing valve springs in V-8 motors, comprising a handle, a head at one end of the handle, the head being curved upwardly, lugs extending from the opposite sides of the head adjacent to the inner end of the head, said lugs having curved recesses conforming to the curvature of a valve spring and adapted to bear against a valve spring being inserted, an enlargement on the rear surface of the head adapted to extend into the end of a coiled spring being installed, holding the tool against slipping with respect to the spring.

ERNEST A. JOHNSON. 

